Black95TSIawd
20+ Year Contributor
- 2,618
- 404
- Jan 28, 2003
-
Dirty,
New_Jersey
Started autocrossing this year. Its pretty damn fun. Have 4 events under my belt and would like to get a better understanding of suspension setup. My last event was yesterday and it was in the rain. I feel that the rain really exploited the flaws in my car's setup, despite finishing 6th out of 15 cars in my class. The biggest issue is front tire judder/skipping while understeering. Now, I know that our cars will inherently push, but yesterday was bad. I had to enter a few corners extremely slow in order to combat the weird tire judder I kept experiencing. My typical dry tire pressures are 38-40psi up front and 31-33psi out back. I went down to 35f and 30r and it seemed to get worse. (no compressor so they stayed there) I took out some rebound in the back to stop the ass end from snap spinning and it seemed to help. I did the same up front to help with the tire judder and it got worse. 
I set the rebound back up to where it usually is and it got better, but not perfect. I ASSumed that softening up the front with less tire pressure and less rebound would help, but it didnt. What am I doing wrong? What am I not understanding? I would have preferred to use my AWD advantage in the rain, but that didn't happen. FTD was set by a GTI in my class.
MY Setup is as follows:
DG style koni coilovers
800lb front springs
350lb rear springs
Front rebound is usually up a quarter turn down from full hard.
Rear rebound is between half to 3/4 full hard depending on how the ass end feels in transitions.
RM bars front and back.
Street tires. (not the best, but not all seasons either.)
-2.7 camber up front with about -1.4 out back.
Near zero toe all around.
Sometimes I wonder if I have too much front spring or not enough rear. The thought of jumping up to 400lb springs has crossed my mind. I've also thought to just shutup and learn the car this year and make changes later, but i'm so impatient at times.
I set the rebound back up to where it usually is and it got better, but not perfect. I ASSumed that softening up the front with less tire pressure and less rebound would help, but it didnt. What am I doing wrong? What am I not understanding? I would have preferred to use my AWD advantage in the rain, but that didn't happen. FTD was set by a GTI in my class.MY Setup is as follows:
DG style koni coilovers
800lb front springs
350lb rear springs
Front rebound is usually up a quarter turn down from full hard.
Rear rebound is between half to 3/4 full hard depending on how the ass end feels in transitions.
RM bars front and back.
Street tires. (not the best, but not all seasons either.)
-2.7 camber up front with about -1.4 out back.
Near zero toe all around.
Sometimes I wonder if I have too much front spring or not enough rear. The thought of jumping up to 400lb springs has crossed my mind. I've also thought to just shutup and learn the car this year and make changes later, but i'm so impatient at times.
)
